Thread size primary
Dirt don't hurt
Joined: Jan 2011
Posts: 21,066
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From: Haslet Texas
It must be a NPT thread.
Seasoned HDF Member
Joined: Apr 2011
Posts: 6,186
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From: W. Texas
Should be pipe thread ad 3/8 sounds right.
If it means a trip to hardware store get a couple different sizes.
The one or 2 I had to replace cause I LOST the dang things were cheap enough.
WP
LOL 3/8 would be a little big
as mentioned latter 1/8
If it means a trip to hardware store get a couple different sizes.
The one or 2 I had to replace cause I LOST the dang things were cheap enough.
WP
LOL 3/8 would be a little big
as mentioned latter 1/8
Last edited by WP50; Mar 1, 2020 at 11:28 AM. Reason: wrong info
Seasoned HDF Member
Joined: May 2008
Posts: 21,216
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From: South Carolina
If it is the `98 in your sig, the plug would be a 1/8 pipe plug.
Last edited by Dan89FLSTC; Mar 1, 2020 at 11:12 AM.
Thread Starter
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Banned
Joined: Dec 2017
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LOL, I actually started this thread while on the road looking for stuff, 1997, Fxdl, I’m pretty sure all Evo primary drain plugs are the same though.
Seasoned HDF Member
Joined: May 2008
Posts: 21,216
Likes: 12,810
From: South Carolina
Evo primary drain plugs are all the same, but you didn`t tell us what you are working on...
1/8 pipe plug.
Part number 739A
1/8 pipe plug.
Part number 739A
Last edited by Dan89FLSTC; Mar 1, 2020 at 11:42 AM.
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Yup, I just bought two new ones for Primary and Tranny for fluid change. The old ones were original to my 96 FLSTN. Most dealers still carry them.
